Given how well the Ukrainians have been using ground-launched Brimstones (Originally an air-launched weapon) in Ukraine I'd say that the British army will get behind this. On another note I wonder if a ground-launched version of the SPEAR 3 will be developed and deployed from the M270 and M142?
Brimstone is already on the cards for deployment by the British Army under the BGOAA - MCCO/LFO programme. A couple of potential launchers...Boxer, ARES variant, Themis UGV or the Supacat Coyote with 8 round launcher. It looks like Supacat are in the lead so far for LFO, with Boxer for MCCO. Which makes sense to a degree....but sticking everything on Boxer is a very expensive way of doing things...
I suspect it will take a while though and Poland will likely deploy Brimstone on their tank destroyers before we deploy it.
Ground launched Spear (not SPEAR 3 thats the MoD programme name) now appears to be on the cards as the missile used for Land Precision Strike (LPS). Originally this was a CAMM/Brimstone mashup (it looked like CAMM but was in fact 178mm rather than 166mm) with a range of at least 80km. This missile was to be fired from M270A2 and Land Ceptor batteries (and by default Sea Ceptor as a result). But last year MBDA appear to have switched to a rocket boosted 'Spear-ER'. Basically a Spear that is 3m long, rather than c1.6m long and a rocket booster to get it to speed and altitude and different wing. We know little about it at present, apart from the fact its based on Spear, has a range of at least 150km and will be packed 6 per pod on M270A2. But....my guess is that range will be far in excess of 150km...Spear in air launched guise will have a range of at least 200km. The ground launched version has over twice the space for fuel and warhead. I suspect that it will have the larger warhead proposed for SpearGlide (c40kg) and more fuel occupying the remainder of the space. It 'could' have a range of 300km+...
A lot will depend on the Defence Review...
Ground launched Spear is a great idea, and I'm definitely in favour....but the CAMM/Brimstone mashup is now unlikely to go ahead, which is a real shame as its potential across the Army, Navy and Air Force was enormous, particularly with its ability to be fired from Land Ceptor and Sea Ceptor. The 'GL Spear-ER' proposal for LPS unfortunately will be a hot launch so not suitable for Land or Sea Ceptor batteries....but....it could also be adapted to air launch....you could get 2 in each F-35 bay for example (obviously minus rocket booster).
It's a real pity we're not doing both...can't imagine the CAMM/Brimstone version would cost that much to do at all...